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The separation of Co 2+ from Zn 2+ , Cd 2+ by anion exchange chromatography was discussed. The chromatographic column containing anion resin 201×7 which was saturated with a solution of ammonium chloride. The effects of the eluant acidity and eluant composition on the separation were investigated. The results indicate that this anion exchange chromatography is suitable to the separation of Co 2+ from Zn 2+ , Cd 2+ , and the condition of separation is simple and convenient. When the column is saturated with NH 4Cl solution (2.0 mol/L, pH=4.0), the separation can be completed effectively. Zn 2+ and Cd 2+ can also be separa ted when different eluants are used and the pure solution with high concentration of Zn 2+ , Cd 2+ respectively can be obtained ea sily.
The separation of Co 2+ from Zn 2+, Cd 2+ by anion exchange chromatography was discussed. The chromatographic column contains anion resin 201 × 7 which was saturated with a solution of ammonium chloride. The effects of the eluant acidity and eluant composition on The separation were investigated. The results that that anion exchange chromatography is suitable to the separation of Co 2+ from Zn 2+, Cd 2+, and the condition of separation is simple and convenient. (2.0 mol / L, pH = 4.0), the separation can be completed effectively. Zn 2+ and Cd 2+ can also be separated when different eluants are used and the pure solution with high concentration of Zn 2+, Cd 2+ respectively can be obtained ea sily.